Puas yog lub hauv paus square ntawm 25 tus lej tag nrho?
Puas yog lub hauv paus square ntawm 25 tus lej tag nrho?

Video: Puas yog lub hauv paus square ntawm 25 tus lej tag nrho?

Video: Puas yog lub hauv paus square ntawm 25 tus lej tag nrho?
Video: Dais thiab nab qa sib xeem tsheb kauj vab 2024, Kaum ib hlis
Anonim

Txij li thaum 25 yog ib tug natural tus lej thiab cov quag 25 yog ib tug natural tus lej (5), 25 yog ib tug zoo meej square . 102.01 yog rational tus lej , thiab vim muaj lwm yam rational tus lej 10.1, li ntawd (10.1)2 = 102.01, 102.01 is a perfect square.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub hauv paus square ntawm 25 cais raws li?

"Qhov quag 25 yog 5. "yog hu ua radical sign (tom qab Latin radix = hauv paus ). Tus naj npawb hauv qab lub cim radical hu ua radicand. Hauv qhov piv txwv, 25 yog radicand.

Ib sab saum toj, puas yog 25 square zoo meej? Txij li thaum 25 yog ib tug natural naj npawb thiab cov square hauv paus 25 yog ib tug nab npawb (5), 25 yog a zoo meej square . Txij li thaum 102.01 yog tus lej rational thiab cov square hauv paus ntawm 102.01 yog tus lej rational (10.1), 102.01 yog zoo meej square.

Raws li, yog 25 tus lej tag nrho?

A tus lej yog ib qho tus lej uas tsis muaj ib feem, zauv, lossis tus nqi tsis zoo. Piv txwv li, 1, 25 ,,365 ua tus lej tag nrho . Qhov tseem ceeb ntawm -3, 100.01, 365 ¼, thiab 2006.3 tsis yog.

Puas yog 7 tus lej rational?

Cov naj npawb . Ib qho tus lej uas tuaj yeem sau ua ib feem nrog cov lej yog hu ua a tus lej rational . Piv txwv li, 1 7 thiab -34 yog tus lej rational.

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